Index_W

W

WAN module, 199

security risks, 490

WANs. See wide area networks (WANs)

web resources, to request IP v6 addresses, 298

weighted fair queuing, 415, 415–416, 416

wide area networks (WANs), 4, 590

connection to Internet, 260, 260–261

exam essentials, 245

hardware, 10, 10–11

options, 218–222

leased networks, 219–221

private networks, 219

public networks, 221–222

planning and design, 222–230

autonomous switching, 226–227

Cisco Express Forwarding (CEF),229–230

criteria, 223–224

distributed switching, 227

Fast switching, 226

implementation issues, 224–225

NetFlow switching, 228

optimum switching, 227

PDIOO methodology, 222–223

process switching, 226

silicon switching, 227

protocols, 230–244

Data Link protocols, 33–34

DSL (digital subscriber line),243–244, 538

Frame Relay, 237–243. See also Frame Relay

HDLC (High-Level Data Link Control) protocol, 33, 231–232, 237, 548

ISDN, 232–236. See also ISDN(Integrated Services Digital Network)

PPP (Point-to-Point Protocol), 34,236–237, 571

SDLC (Synchronous Data Link Control) protocol, 33, 231, 577

redundant configurations, 203–205

wildcard mask, 590

window (data transmission), 25

sizes for TCP/IP, 26

Windows 2000 workstations, IP v6 use in, 298

WinSock, 591

workgroup switching, 591

World Wide Web, Application layer for, 17